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CVE-2024-49997

net: ethernet: lantiq_etop: fix memory disclosure PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 905f06a34f960676e7dc77bea00f2f8fe18177ad; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 60c068444c20bf9a3e22b65b5f6f3d9edc852931; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 185df159843d30fb71f821e7ea4368c2a3bfcd36; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 469856f76f4802c5d7e3d20e343185188de1e2db; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 2bf4c101d7c99483b8b15a0c8f881e3f399f7e18; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before e66e38d07b31e177ca430758ed97fbc79f27d966; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 1097bf16501ed5e35358d848b0a94ad2830b0f65; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 431b122933b197820d319eb3987a67d04346ce9e; affected 504d4721ee8e432af4b5f196a08af38bc4dac5fe before 45c0de18ff2dc9af01236380404bbd6a46502c69
Linux / Linuxaffected 3.0; unaffected 0 before 3.0; unaffected 4.19.323 through 4.19.*; unaffected 5.4.285 through 5.4.*; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.55 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

siemens-SADP

No English description supplied.